1012144305 has 16 divisors (see below), whose sum is σ = 1621174464. Its totient is φ = 539229120.

The previous prime is 1012144271. The next prime is 1012144313. The reversal of 1012144305 is 5034412101.

It is not a de Polignac number, because 1012144305 - 2⁶ = 1012144241 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21739 + ... + 49968.

It is an arithmetic number, because the mean of its divisors is an integer number (101323404).

Almost surely, 2^1012144305 is an apocalyptic number.

1012144305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1012144305 is a deficient number, since it is larger than the sum of its proper divisors (609030159).

1012144305 is an equidigital number, since it uses as much as digits as its factorization.

1012144305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72656.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1012144305 is about 31814.2154547303. The cubic root of 1012144305 is about 1004.0318242136.

Adding to 1012144305 its reverse (5034412101), we get a palindrome (6046556406).

The spelling of 1012144305 in words is "one billion, twelve million, one hundred forty-four thousand, three hundred five".